Question: what is sister or brohter of caligula that has public office is quaestor ?''
Paraphrase: what is sister or brohter of caligula that has open office is quaestor ?''
SPARQL (Wikidata): SELECT ?answer WHERE { wd:Q1409 wdt:P3373 ?answer . ?answer wdt:P39 wd:Q189430}
Answer: Drusus Caesar, Nero Caesar